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9983505-1-M-Briggs and Stratton-591868-Plug-spark
Part Location Diagram of 591868 Briggs and Stratton Plug-spark
See part B-337 in the diagram
9983505-1-S-Briggs and Stratton-591868-Plug-spark 360 view
( Grid squares measure 1x1 inch )
9983505-1-S-Briggs and Stratton-591868-Plug-spark 9983505-1-S-Briggs and Stratton-591868-Plug-spark 360 view
Part Location Diagram of 591868 Briggs and Stratton Plug-spark

Plug-spark 591868

Manufactured by:
Briggs and Stratton
ERP Number:
ERP9983505
Part Number:
591868
Original Equipment Manufacturer ?
$6.15
★★★★★
★★★★★
3 Reviews
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Easy 

1- 2 hours 

(4 rated repairs) ?

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Description Frequently Purchased Together Troubleshooting Reviews Questions & Answers Repair Instructions Model Cross Reference

Product Description

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This replacement spark plug is a genuine OEM item that is used with Briggs and Stratton engines. A spark plug delivers electric current from an ignition system to an internal combustion engine. After time spark plugs will become dirty or fouled eventually requiring replacement. This high quality item is sold individually. You should gap your spark plug according to the owners manual of the outdoor product you have.

Frequently Purchased Together

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Troubleshooting

This part works with the following brands:
  • Briggs and Stratton
  • Troy-Bilt
This part works with the following products:
  • Engine
Part# 591868 replaces these:
  • 799876
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Customer Part Reviews

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5.0
Average Rating (out of 5):
★★★★★
★★★★★
(3 Reviews)
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    3
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  • 1
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★★★★★
★★★★★
perfect part
The part arrived fast,and it worked perfectly for the mower,I will be ordering more parts as needed,Thanks
Leslie - May 1, 2019
Verified Purchase
★★★★★
★★★★★
OG part
It’s a spark plug. Did it’s job
Guest - June 20, 2022
Verified Purchase
★★★★★
★★★★★
Great service
The process was cleared for a problem I experienced with online with the assistance of a customer rep. The items claim quicker than I thought they would. Excellent quality parts also.
Ralph - June 23, 2022
Verified Purchase

Questions & Answers

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Customer Repair Instructions

All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.

Easy 

1- 2 hours 

(4 rated repairs) ?
  • 1
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Sorry, we couldn't find any existing installation instruction that matched.

Hard starting and poor performance once finally running

Philip from FORT WAYNE, Indiana

9 of 9 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
More than 2 hours
Tools:
Pliers, Screw drivers, Socket set, Wrench set
Parts Used:
491588B, 591868, 498260
Removed old spark plug, correctly gapped and re-installed new spark plug purchased from e-replacementparts.com.
Removed old, dirty air filter, airbox assy. and gummed-up carburetor from engine. Dis-assembled airbox and carb completely - cleaning all the parts thoroughly with carb cleaner spray.
Re-assembled freshly cleaned car b with new carb overhaul kit from e-replacementparts.com.
Re-installed overhauled carb and airbox assy. back onto engine. Re-installed new air filter purchased from e-replacementparts.com and adjusted carb to specs.
Lawnmower engine now starts easily and has plenty of power!
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Lawn mower would not run.

Harvey from Long Prairie, Minnesota

7 of 7 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Pliers, Screw drivers, Socket set
Parts Used:
491588B, 591868, 795629
Check flywheel key, remove spark plug and air cleaner. Replace gasket between air filter holder and carburetor. Replace spark plug and gap at 0.30
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Toro mower was hard starting. After finally starting with sarter fliud, engine soon dies out.

Kelvin from Hilo, Hawaii

5 of 5 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
1- 2 hours
Tools:
Pliers, Screw drivers, Socket set
Parts Used:
491588B, 591868, 89838S, 791891
1. Remove top cover.
2. Remove air filter cover and cartridge.
3. Drained fuel then removed old fuel line.
4. Used carburetor cleaner to clean carburetor, spraying fuel inlet and choke.
5. Installed new fuel line with filter. (old fuel line did not have a filter)
6. Installed new air filter with cover.
7. Remove and installed new spark plug gapped it at 0.030.
8. Replaced top cover.
9. Fill fresh, non-ethanol fuel.
10. Crank till start.
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Mower needed a new spark plug.

Joseph from LANDENBERG, Pennsylvania

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Screw drivers, Socket set
Parts Used:
591868
removed old plug; inserted new plug; tightened new plug
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  • 1

Model Cross Reference

This part works with the following models:
ERP Number: ERP9983505
Manufacturer Part Number: 591868
Brand Model Number Description
Briggs and Stratton 120502-0015-E1 Engine - Engine
Briggs and Stratton 120502-0100-E1 Engine - Engine
Briggs and Stratton 120502-0255-E1 Engine - Engine
Briggs and Stratton 120502-0354-E1 Engine - Engine
Briggs and Stratton 120H02-0100-B1 Engine - Engine
Briggs and Stratton 120H02-0100-D1 Engine - Engine
Briggs and Stratton 120H02-0108-B1 Engine - Engine
Briggs and Stratton 120H02-0109-D1 Engine - Engine
Briggs and Stratton 120H02-0111-D1 Engine - Engine
Briggs and Stratton 120H02-0112-B1 Engine - Engine
Briggs and Stratton 120H02-0112-D1 Engine - Engine
Briggs and Stratton 120H02-0113-B1 Engine - Engine
Briggs and Stratton 120H07-0110-D1 Engine - Engine
Briggs and Stratton 120H07-0114-D1 Engine - Engine
Briggs and Stratton 120K02-0110-E1 Engine - Engine
Briggs and Stratton 120K02-0111-E1 Engine - Engine
Briggs and Stratton 120K02-0361-E1 Engine - Engine
Briggs and Stratton 120K02-0362-E1 Engine - Engine
Briggs and Stratton 120K02-0368-E1 Engine - Engine
Briggs and Stratton 120K02-0418-E1 Engine - Engine
Briggs and Stratton 120K02-0445-E1 Engine - Engine
Briggs and Stratton 120K02-0528-E1 Engine - Engine
Briggs and Stratton 120K02-0529-E1 Engine - Engine
Briggs and Stratton 120K02-0534-E1 Engine - Engine
Briggs and Stratton 120K02-0535-E1 Engine - Engine
Briggs and Stratton 120K02-0591-E1 Engine - Engine
Briggs and Stratton 120K02-0646-E1 Engine - Engine
Briggs and Stratton 120K02-0649-E1 Engine - Engine
Briggs and Stratton 120K02-0655-E1 Engine - Engine
Briggs and Stratton 120K02-0677-E1 Engine - Engine
Plug-spark
$ 6.15
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Some of the parts we sell are eligible for mail-in rebates since we can recycle them. We will display any applicable rebates in your shopping cart. To redeem your rebate, contact Customer Service after you have received your part.

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